3 papers
astro-ph.GA2025
Characterizing the astrometric quality of AGNs in Gaia-CRF3
Shilong Liao, Qiqi Wu, Ye Ding +2
Active Galactic Nuclei (AGNs), owing to their great distances and compact sizes, serve as fundamental anchors for defining the celestial reference frame. With about 1.9 million AGN…
astro-ph.SR2025
Analysis of the Gaia Data Release 3 parallax bias at bright magnitudes
Ye Ding, Shilong Liao, Shangyu Wen +1
The combination of visual and spectroscopic orbits in binary systems enables precise distance measurements without additional assumptions, making them ideal for examining the paral…
astro-ph.IM2024
Analysis of Gaia Data Release 3 Parallax bias in the Galactic plane
Ye Ding, Shilong Liao, Qiqi Wu +2
The systematic errors are inevitable in Gaia published astrometric data. Lindegren et al. (L21) proposed a global recipe to correct for the GEDR3 parallax zero point offset, which…